Deep well pump



Feb. 11, 1941. LQEBER 2,231,131

DEEP WELL PUMP Filed June 14, 193'! 4 Sheets-Sheet 3 Shaw/M1 Feb. 11, 1941. LQEBER 2,231,131

DEEP WELL PUMP Filed June 14, 1937 4 Sheets-Sheet 4 HM.L0eber Patented Feb. 11, 1941 UNITED'STATES PATENT OFFICE DEEP WELL Herman M. Loeber, Beatrice, Nebr., assignor t Dempster Mill Manufacturing Company, a corporation of Nebraska Application June 14, 1937, Serial No. 148,184 [9 Claims. (01. 103-205) ing slight differences in alinement between the axis of the pumping rod and the guides for the pump reciprocating means.

A further object of this invention is to provide 15 in a device of this kind a housing toenclose the Figure 1 is a vertical section partly in detail" through the center v01 9. device constructed according to an embodiment of this invention.

Figure 2 is a sectional view .taken on the line 30 2-2 of Figure 1.

Figure 3 is a detail front elevation of the pump operating means with the front shields or covers removed therefrom.

Figure 4 is a sectional view taken on the line 35 4-4 of Figure 1.

Referring to the drawings, the numeral l designates generally a housing which is adapted to have a lubricant positioned therein and the lubricant may be drained out of the housing by remov- 40 ing a threaded plug l3 which is positioned in the lower rear portion of the housing. A shaft II is secured in bosses 12 carried by the opposite side walls l4 of the housing I0 and this shaft. II has a relatively large gear l5 rotatably mounted 45 thereon. A driving pinion I6 is secured to the shaft I! which is :Iournalled inbearings l3 carried by the side walls H in vertically spaced relation to the bosses l 2. A relatively large pulley I9 is secured to the shaft I1 and this pulley I9 is 50 positioned exteriorly of the housing 10.

The housing III is provided with a closure plate 28 which closes an opening 2| in the upper portion of the housing It and this closure 20 is preferably inclined in a rearward and downward di- 55 rection and is secured by means of bolts 22 or the like. The closure 20 at its lower rear portion is provided with upstanding lugs 23 which are spaced apart and through which a shaft 24 engages. A plate or platform 25 provided with downwardly extending flanges 26 is disposed in 5 substantially horizontal position and the shaft 24 extends through the rear portions of the flanges 28 to pivotally mount the platform or base 25 on the closure 20. The base or platform 25 is ad- Justed by means of an adjusting bolt 21 which extends through the forward portion of the base or platform 25 and engages a lug 28 carried by the closure 20.

A motor or power member 29 is secured to the base 25 and is provided with a' relatively small driving pulley over which a belt or flexible driving member 30 engages. The belt 30 is trained over the large pulley I9 so that in this manner the speed of the gear I5 is reduced to the desired degree. The housing l0 adjacent the forward end thereof is provided with a pair of spaced apart vertically disposed guide members 3! which, at their lower ends, are positioned in openings 32, provided in bosses 33 and the upper ends of the guide members 3| are secured by .means of set screws 34.

' Tubular slide members 35 engage the guide members 3i and these tubular slide members 35 are provided at their upper ends with flared portions 36 which provide means whereby the lubricant in the housing ill may be collected and distrlbuted along the guide members 3| as the slide members 35 reciprocate up and down. Each slide member 35 at substantially the longitudinal center thereof is provided with an enlarged bore 31 35 within which the lubricant may be retained which is collected by the cups or flared portions 36. The slide members 35 are each provided with a trunnion 38 which is preferably hollow so as to communicate with the lubricating chamber 39 pro- 40 vided by the enlarged bore 31. The trunnions 38 are disposed in alinement and in confronting relation and provide a hollow shaft for a bearing 40 which is integral with'a sleeve 4|. The bearing 40 contacts both of the trunnions 38 and holds these trunnions in axial alinement.

Each slide member 35 is also provided with a forwardly extending arm 42 having a bearing 43 at its forward end and preferably the two arms 42 are disposed in forwardly convergent relation. A shaft or pin 44 extends through the bearings 43 and a head 45 is disposed between the two bearings 43 and is mounted on the pin or shaft 44. A pump rod 46 is secured to and extends downwardly from thehead 45 and is adapted at its lower end to be connected to a pumping means disposed within the well casing.- A packing 41 is secured to the rod 48 and slidably engages a tubular guide 48 which is secured to a base 48. The guide member 48 is preferably of a length slightly greater than the stroke of the slide members 38. The base member 48 is bolted as by bolts 88 to a discharge head or casing 8| provided with laterally extending flanges 82 engaging forwardly extending arms 88 integral with the housing 18. The flanges 82 are secured to the arms 88 by bolts 84 or the like.

The pump rod 48 is reciprocated upon rotation of the gear 18 by means of an eccentric 88 which is secured as by bolts 88 to the gear II. A sleeve [81 is carried by a ring 88 engaging the eccentric 88 and this sleeve 81 has a lever 88 slidably extending therethrough. The upper side of the sleeve 81 is provided with an elongated channel 88 within which the lubricant is received and lubricating openings 8| extend through the sleeve 81 and communicate with the channel 88 so that the rock arm 88 will be lubricated at all times. The rear end of the rock arm or lever 88 is secured in a boss 82 carried by a. bearing sleeve 88 through which a shaft 84 extends. The shaft 84 is positioned in a rearwardly offset housing 88 integral with the rear wall 88 of the housing 18 and the side walls of the housing 88 are each provided with bossesor bearings 81 in which the shaft or pin 84 is Journalled.

The discharge head 81 is provided with a liquid receiving chamber 88 and has a threaded opening 88 to which the upper end of the well casing may be threadedly secured. The chamber 88 is provided with a threaded discharge opening 10 so that the liquid pumped out of the well may be forced through pipes to a collecting means or the like. The base plate 48 is provided with an upstanding boss 1| in which the lower end of a pump cylinder 12 is mounted. The cylinder 12 communicates with the chamber 88 through an opening 13 provided in the head II. A piston rod 14 is secured at its upper end to a forwardly extending arm "carried by the head 48 and the lower end of the rod 14 has'a piston 18 secured thereto, A plate 11 is positioned at the lower end of the cylinder 12 and is provided with suitable openings therethrough so that the air compressed by the piston 18 may be forced downwardly through the opening 18. A spring pressed check valve 18 is loosely mounted on a guide rod 1 18 carried by the plate 11 and this valve 18 opens downwardly to permit the downward movement or passage of air into the opening 13. The upper end of the cylinder 12 is open to the atmosphere.

The forward wall 18 of the housing I8 is provided with an opening 88 which is partially covered by a closure plate or shield 8| fastened to the housing ID by bolts 82 or the like. The lower end portion of the shield 8| may be bifurcated, as at 88, so that the lower edge of the opening 88 may be engaged therebetween. The shield 8-1 is provided with a pair of elongated slots 84 through which the arms 42 are adapted to pass. A shield or plate 88 having a forwardly extending upper end portion 88 is disposed partially about the cylinder 48 and is secured to thecrosshead 45 in a positlon'to prevent any water from the cylinder 48 leaking into the housing l8 through the slots 84. r

A cover or housing 81 encloses the cylinders 48 and 12 and is provided with a cover 88 which engages over the upper end thereof and which also engages an upstanding flange 88 carried by the forward end of the housing 18. The housing 81 is made removable so that the pump parts positioned therein may be worked upon if necessary.

In the use and operation of this pumping mechanism the motor 28 is adapted to be connectedto a suitable source of current supply and rotation of the shaft thereof will effect rotation of the pulley l8. Rotation of the pulley I I will turn the shaft 11 and the pinion or reduction gear t8 and thus effect rotation of the gear ll.

As the gear 18 rotates, the eccentric 88 will rock.

raise the base 28 and thus move the motor 28* vertically away from the shaft i1. The motor 28 may be removed from the housing 18 by loosening the bolts 22 and removing the cover or closure 28 .or,,if desired,-the motor may be removed by withdrawing the shaft 24 from the upstanding lugs 28.

The provision of a two part crosshead structure embodying the slides 88 and the hollow trunnions 88 is an important feature of this invention as the use of this two part crosshead permits the easier manufacture or construction of the crosshead in addition to the easier assembly and repair thereof. This is the case because the two' part crosshead structure, together with the means for pivotally connecting the same to rod 88 and'to the pump rod 48, is able to compensate for misalignment of the guide rods 8| with respect toeach other and the pump cylinder.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

What is claimed is:

1. A deep well pumping means comprising a pump rod, a housing, a pair of parallel members carried by the housing, a slide member on each' guide member, confronting trunnions carried by each slide member, a sleeve telescoping said trunnions, a second sleeve carried by said with the pump rod and said slide members to reciprocate said pump rod upon reciprocation of said slide members.

2. A deep well pumping means comprising a pump rod. a housing. a pair of parallel guide members carried by the housing, a slide member ide on each guide member, confronting trunnions carried by each slide member, a sleeve telescoping said trunnions, a second sleeve carried by said first sleeve and disposed atright angles thereto. a rock lever in said housing slidably engaging said second sleeve, ashaft journalled in said housing, a gear secured to said shaft, an eccentric carried by said gear, means engaging said eccencentric, a second shaft journalled in said housing and having an end thereof projecting outwardly of the housing, a gear carried by said second shaft meshing with said first gear, a removable closure carried by said housing, upstanding lugs carried by one end of said closure, a motor supporting platform, means engaging an end of said platform and said lugs to pivotally secure an end of said platform on said lugs, means engaging the other end of said platform and said closure to adjust said other end of said platform relative to said closure, a motor carried by said platform, means engaging said motor and said second shaft to rotate said second shaft, and means engageable with said ump rod and said slide members to reciprocate said pump rod upon reciprocation of said slide, members.

3. In a deep well pumping means, apump rod, a cross-head, a housing provided with a pair of elongated openings in a wall thereof, means carried by said housing and projecting through said openings and engaging said cross-head to reciprocate said cross-head, means securing said crosshead to the pump rod, and a shield carried by said securing means and disposed between said pump rod and said well of said housing.

4. In a deep well pumping means, a pump rod, a housing provided 'with a pair of elongated openings in a wall thereof, a pair of parallel guide members in said housing adjacent said wall, a slide member on each guide member, opposed trunnions carried by said slide members, means carried by said housing and engaging said slide members for reciprocating said slide members, and means securing the, pump rod to said slide members.

5. In a deepwell pumping means, a pump rod, means for operating said pump rod and including a pair of parallel guide members and a slide member on each guide member, and a shield carried by said operating means and extending between said pump rod and said slide members.

6. In a deep well pumping means, a pump cylinder, a piston slidable in said cylinder, a pump rod secured to said piston, a housing having an elongated opening parallel to and adjacent to said cylinder, operating means located in said housing and comprisinga reciprocating member .pair. of parallel guide members carried by said extending through said opening and operatively connected to said pump rod, and a shield carried by said member and reciprocable therewith, said shield extending between said cylinder-and said opening whereby the pumped fiuid escaping from 5 the top of the cylinder cannot enter the housing.

7. In a deep well pumping means. an open ended pump cylinder, a piston slidable in said cylinder, a pump rod secured to said piston, a housing having an elongated opening parallel to and adjacent to said cylinder, operating means located in said housing'and comprising a reciproeating member extending through said opening and operatively connected to said pump rod, and

a shield carried by said member and extending over the top of said cylinder and between said cylinder and said opening whereby the pumped fluid escaping from the top of the cylinder cannot enter the housing.

8. A pumping mechanism comprising a pump cylinder, a piston slidable in said cylinder, a pump rod secured to said piston, a housing, a pair of parallel guide members carried by saidhouslng, a slide member on each guide member, said slide membersbeing completely independent of each other, means for reciprocating simultaneously said slide members, an arm on each of said slide members, and a pivotal connection between said two arms and said pump rod whereby any relative misalignment of the guide members and the cylinder i compensated for.

9. A pumping mechanism comprising a pump rod, a housing having apair of elongated openings parallel to and adjacent to said pump rod, a

housing, a separate slide member on each guide member; means for reciprocating simultaneously said slide members, an arm on each of said slide members, each of said arms extending throughone of said openings, said arm further having aligned bearings, a shaft extending through said entering the housing.

HERMAN M. LOEBER. 

